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Question

Find the angle between the vectors u and v if
u = (-1,4)
v = (3,-4)

a. 155.93
b. 158.58
c. 158.13
d. 155.24
e. 157.17
9 years ago

Answers

Steve
just plug in your numbers:

cosθ =
<b>u</b>•<b>v</b>
-----------------------
|<b>u</b>| |<b>u</b>|
9 years ago
anna
I've tried this and got - 0.9216353751380653

can you help me any further please?
9 years ago

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